Stop-cock



UNITED STATES PATENT OFFICE.

ISAAC C. TATE, OF NEV LONDON, CONNECTICUT.

STOP-COCK.

Specification of Letters Patent No. 24,416, dated June 14, 1859.

To all 'whom it may concern:

Be it known that I, ISAAC C. TATE, of the city of New London, county of New London, and State of Connecticut, have invented a new and useful Improvement in the Mode of Constructing Compression Bib-Cocks; and I do hereby declare thatthe following is a correct description of the same, reference being had to the accompanyingA drawing and to the letters of reference marked thereon.`

The nature of my invention consists in the application of a spring or its equivalent placed in the center division, to raise the packing or valve from its seat.

To enable others skilled in the art to make and use my invention, I will proceed to describe the construction and operation.

The drawing Figure 1 is a side view of the cock, (part sectional) and showing the spring arrangements &c. when closed. Fig. 2 a side view (part sectional) with the packing raised for the fluid to pass. Fig. 3 a plan view of the double water course openings.

The general construction of this compression bib cock as described in the specification and application, is substantially the same as are now in general use.

My improvement is in the application of the spring A and pin B, inserted in and to operate freely, in the center of the cross division C of the water course or lowing passage D.

The division C being solid, I drill a hole of the proper size to receive the spiral spring A or its equivalentas shown in plan Figs. 1 and 2, this spring I make of a sufficient tension to lift up the flexible or other packing E, from the apertures F, F, by forcing up the pin B against the bottom of the hacking E and relieving the same from its bed when it gets set, or sticks to the same by means 0f the compression of the spindle, and other causes, and the pressure of the fluid is not suflicient to raise it.

The compression upon the loose flexible packing E is caused by the actuating screw spindle G, which turns right handed to compress, and left handed to relieve, the packing from the openings, F, F. It is in this case where the utility of my invention becomes apparent, for after the spindle has been turned left handed to relieve the packing and allow the water to flow through the openings F, F, the packing will be found to have such an adhesion to the seat, that the water will not have suflicient force to raise the same, which the spring A will accomplish at all timesthe vertical holes I-I H under the spring are to allow the escape of the water that may accumulate around the spring. v

What I claim as my invention and desire to secure by Letters Patent, is

The application of the spring A, in the manner substantially as herein set forth and described, and for the purpose described.

ISAAC C. TATE.

Witnesses:

GILEs BAILEY, SETH SMITH. 

